This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX350, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI160 Standard Cylinder SI160AX350
The AirTAC SI160 Standard Cylinder SI160AX350 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 350mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX350, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke350 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160AX350
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI160 Standard Cylinder SI160AX350
The AirTAC SI160AX350 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 350 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI160AX350, a direct sharing the exact interface, bore, stroke, force, port and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This -A variant uses a SUS420J2 stainless rod for corrosion resistance. With no -S suffix, it lacks a magnet and cannot take a sensor.
Airtac SI160 Standard Cylinder SI160AX350 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX350 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX350 |
| Bore size | Ø160 mm |
| Stroke | 350 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160AX350 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160AX350 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160AX350
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI160 Standard Cylinder SI160AX350 Is Used
Heavy Pressing
Generates 14074 N at 0.7 MPa for seating large components and heavy-duty pressing tasks in automotive assembly lines.
Gate Actuation
Drives robust 350 mm stroke motion for opening and closing large industrial diverter gates or heavy process valves.
Replacing the Airtac SI160 Standard Cylinder SI160AX350 with the SAI160AX350
To replace the SI160AX350, order the SAI160AX350. Confirm the ISO 15552 mounting interface, 350 mm stroke, G3/4 port, and -A SUS420J2 stainless rod. Because this SKU lacks an -S magnet, it cannot accept position switches. For sizing, the 125 mm bore yields 6136 N [email protected], while the 200 mm bore yields 15708 N. At 350 mm stroke, use external guides to prevent rod-bending side loads. The air cushion only decelerates; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX350
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160AX350 FAQ
Yes, the SI160AX350 is discontinued. The direct replacement is the SAI160AX350. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 350 mm stroke, output force, G3/4 port, and mounting fixtures.
This double-acting cylinder has a G3/4 port. It delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX350
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX350 replacement — usually within 7-8 hours.